NiSi Unveils 150mm 'Explorer' Filters that are 2x Stronger than Other Glass Filters

NiSi has just launched the 150mm Explorer Collection of square glass filters. This new lineup of ND and Graudated ND filters promises the same professional optical quality, but uses a special hardening process to deliver twice the durability of a typical glass filter. The NiSi Explorer Collection actually launched back in 2019, but the news […]